Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.251 Home All releases olderv2.1.250
Claude Code v2.1.251

Model catalog cached on disk instead of refetched

You'll notice
Useful2 Signal2
Elsewhere

Model list is cached on disk now, so startup does fewer network fetches.

What

The served catalog of models and thinking settings per surface is now written to disk with fetch and staleness timestamps plus an etag, and expires on a jittered lifetime rather than being fetched on every use.

Details
  • No user-facing setting controls the cache.
Evidence

servedCatalog

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.251 →